The series ran from 1964 to 1987 and comprised 43 books.

    Could it be, though, that the horses were unusually sluggish, and that there was something more sinister attempting to sabotage him...?"The best thriller writer going."ATLANTIC MONTHLY

    the prison... the doctors... they were all part of the past. Charlie was free and getting well now -So no one had to know how much time Charlie spent around the school yard, watching. No one did - until the night 9-year-old Jessie Brant disappeared...

    When he's hired by a wealthy American hunter, Frederick Wells Homer, to fly into a prohibited part of Finland near the Soviet border, the job seems shady indeed, and when a major crook wants him to go on the hunt for Tsarist treasure, things get messy. With thugs and the Finnish Secret Service already on his tail, matters get worse when Homer's beautiful sister turns up to search for him, and Cary's fellow bush pilots start getting killed off in a series of suspicious accidents. Cary begins to realise that it may all stem from an incident in his wartime past.

    Then late at night, when the others are asleep, mysterious Nurse Julia comes to talk to her. But why is she so secretive? And who is she . . . ? Translated from the Swedish.

    On is set in myth-enshrouded Africa. The other against the Mosques and Minarets of Modern Turkey. In Blue Fire Susan returns to Africa with her husband whom she recently married but scarely knows. Susan fears her first encounter with her father who drover her mother and her from his home and later served a prison term for smuggling diamonds.In Black Amber Tracy vows to solve the mystery of her sister's "suicide by drowning". Tracy is in Istanbul and overhears a heated argument but the only word she knows is her own name. What is the meaning of a string of black amber beads marking an alarming passage in a book? Is Radburn part of some loathsome secret hidden in the past? Tracy senses that she may already know too much and that her life is in peril!